Ten construction workers will often get a job done faster than one. But in digging a deep well, for instance, ten workers are a waste of human resources: the diggers can’t work simultaneously, as the second worker isn’t able to start digging until the first one has finished, and so on.
A similar challenge is encountered by scientists who study the structure and dynamics of molecules using nuclear magnetic resonance (NMR) spectroscopy. This technique serves as an essential tool in understanding numerous molecules – including proteins, nucleic acids and active pharmaceuticals – in their natural surroundings. It does this by exposing them to electromagnetic radiation and studying the dispersion patterns of the electromagnetic waves that hit the molecules. However, to obtain a full NMR picture of such complex molecules one needs to perform numerous measurements that are based on the same “serial” principle as well digging: hundreds or thousands of one-dimensional scans need to be performed one after the other; these scans need then to be combined to create a unified multidimensional picture of the molecule. While a single scan may take a fraction of a second, multidimensional procedures may last several hours or even days.
A team led by Prof. Lucio Frydman of the Weizmann Institute’s Chemical Physics Department has now found a way to perform multidimensional NMR with a single scan. The new method, described in the December 2002 issue of the Proceedings of the National Academy of Sciences USA (PNAS), is expected to significantly speed up molecular studies routinely performed in diverse fields.
Alex Smith | EurekAlert!
New method gives microscope a boost in resolution
10.12.2018 | Rudolf-Virchow-Zentrum für Experimentelle Biomedizin der Universität Würzburg
A new 'spin' on kagome lattices
10.12.2018 | Boston College
What if a sensor sensing a thing could be part of the thing itself? Rice University engineers believe they have a two-dimensional solution to do just that.
Rice engineers led by materials scientists Pulickel Ajayan and Jun Lou have developed a method to make atom-flat sensors that seamlessly integrate with devices...
Scientists at the University of Stuttgart and the Karlsruhe Institute of Technology (KIT) succeed in important further development on the way to quantum Computers.
Quantum computers one day should be able to solve certain computing problems much faster than a classical computer. One of the most promising approaches is...
New Project SNAPSTER: Novel luminescent materials by encapsulating phosphorescent metal clusters with organic liquid crystals
Nowadays energy conversion in lighting and optoelectronic devices requires the use of rare earth oxides.
Scientists have discovered the first synthetic material that becomes thicker - at the molecular level - as it is stretched.
Researchers led by Dr Devesh Mistry from the University of Leeds discovered a new non-porous material that has unique and inherent "auxetic" stretching...
Scientists from the Theory Department of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science (CFEL) in Hamburg have shown through theoretical calculations and computer simulations that the force between electrons and lattice distortions in an atomically thin two-dimensional superconductor can be controlled with virtual photons. This could aid the development of new superconductors for energy-saving devices and many other technical applications.
The vacuum is not empty. It may sound like magic to laypeople but it has occupied physicists since the birth of quantum mechanics.
10.12.2018 | Event News
06.12.2018 | Event News
03.12.2018 | Event News
10.12.2018 | Life Sciences
10.12.2018 | Physics and Astronomy
10.12.2018 | Life Sciences